The 19-year-old actress took to Instagram on Monday to wish her ex-boyfriend, Gregg Sulkin, a happy birthday -- alongside a steamy snap of herself cuddling up to his shirtless body.

"Happy birthday Gregg!!!! I love you :)) always been such a wonderful person:) glad we are here through thick and thin," Thorne, who broke up with Sulkin in August 2016, captioned the pic. "Let's party you old man!!"